/**
 * This file is part of the Java Machine Learning Library
 * 
 * The Java Machine Learning Library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * The Java Machine Learning Library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with the Java Machine Learning Library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Copyright (c) 2006-2010, Thomas Abeel
 * 
 * Project: http://java-ml.sourceforge.net/
 * 
 */
package net.sf.javaml.filter;

import net.sf.javaml.core.Dataset;
import net.sf.javaml.core.Instance;

/**
 * Umbrella class for filters that implements both the
 * {@link net.sf.javaml.filter.InstanceFilter} and
 * {@link net.sf.javaml.filter.DatasetFilter} interfaces.
 * 
 * The <code>build</code> method has an empty implementation and the
 * <code>filterDataset</code> method applies the filter separately to each
 * instance.
 * 
 * {@jmlSource}
 * 
 * @version 0.1.6
 * 
 * @author Thomas Abeel
 */
public abstract class AbstractFilter implements DatasetFilter, InstanceFilter {

    public void build(Dataset data) {
        // do nothing
    }

    public void filter(Dataset data) {
        for (Instance i : data)
            filter(i);

    }

    public abstract void filter(Instance inst);

}
